John w



(No Model.)

J. W. MILLET.

GUIDE FOR ENDLESS APRONS.

No. 311,844. Patented Feb. 3,1885.

Fly. 1.

WITNES$ES I INVENTOR .5542 j'WZ/Zei y BY , fl fl g ATTORNEYS N PETERS. PhnkwLilhngr-aplwr, wmvn m n. c.

llivirnn STATES f PATENT Prion.

JOHN XV. MILLET, OF DOLGEVILLE, ASSIGNO'R TO ALFRED DODGE, OF NEV YORK, N. Y.

GUIDEFOR ENDLESS APRONS.

SPECIFICATION forming part of Letters Patent No, 311,844, dated February 3, 1885.

' Application filed December II, 1984. i (No model i .To all 1111 0112, it may concern:

3e it known that 1', JOHN \V. MILLE'r, a citizen of the United States, residing at Dolgeville, in the county of Herkinier andState of New York, have invented new and useful Improvements in Guides for Endless Aprons, of which the following is a specification.

The object of this invention is to provide a device whereby an endless apron can be readily brought back to and retained in a straight course.

The peculiar and novel construction of my device is pointed out in the following specification and claims,' and illustrated in the accompanying drawings, in which- Figure 1 represents a plan or top view. Fig. 2 is a horizontal section in the plane a- .r, Fig. l. Fig. 3 is a transverse section in the plane 3 9 Fig. 1.. tion in the plane .2, Fig. l, on a larger scale than the previous figures.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a roller round. which extends the endless apron B. I Said roller is made in two sections,AA, each of which is composed of a series of slats, a, Figs. 2 and 4., the outer ends of which are enlarged to form sectional grooved heads I), while their inner portions rest in grooved disks 0, which are firmly mounted on the.

shaft (1. 1

Into the heads I) are fitted tubes (1, which are firmly mounted on the shaft 0, so that by taki ng hold of the heads b the sections A A can be moved on said shalt in the direction of its length. The shalt Chas its bearings in hangers D,which are suspended from the frame F, from which extend lugs 6 into slots f, formed in the frame ll. (See Fig. 4.) These lugs are tapped to receive screw-spindles F,which extend out through the end of the frame and are mounted therein, so that they can turn freely in either direction, but they cannot move in the direction of their length. On the outer ends of these screw-spindles are secured handcranks 9, so that by turning the screw-spindles the hangers D can be moved on the frame in a direction transversely to the shaft. The shaft 0 is provided with collars h it outside of its bearings in the hangers, Fig. 2, so that it cannot move in the direction of its length.

Fig. 4 is a transverse sec The hangers are secured in the required position by set-screws 11 2'.

On each of the hangers D is firmly secured a ring, j, from which extend two lugs, k Z, the lug It being shown in Figs. 1 and 4 and the lug Z in Figs. 2 and 3, and in thelug 76 is fitted a pin, m, Figs. -1 and 4, which extends into a ring, a. The rings ncngage with the grooved heads I) of the roller-sections A A and they swivel on the pins in, so that they can be ad jnsted in an oblique or in a r ci angular position. (See Figs. 1 and 2.)

For the purpose of adjusting the rings a, I use screws 0, which are tapped into the lugs Z, Fig.2,and the inner ends of which turn loosely in blocks but cannot move in said blocks in the direction of their length. The blocks 1 are, hung on center points, q, which extend through lugs r, projecting from the rings a, Fig. 4. By turning the screws 0 in or out the roller-sections A A can be moved outward or inward, or one of said sections can be moved inward and the other outward, and by properly manipulating these screws the endless apron B can be always retained in a straight course. It will also be noticed that by moving the hanger D by means of the screw-spin dle F the shaft 0, together with both rollersections A A-, can be adjusted, and that by moving the hangers in opposite directions the apron can be subjected to a greater strain at one side than at the other, so that if the pressure to which the apron may be subjected is greater on one side than on the other it can still be retained in a straight course, the set-screws 0 serving to adjust slight discrepancies during the time the apron is in motion.

It is obvious that in place of the set-screws 0 suitable levers or cams might be used,which, when connected to the rings a, would enable the workman in charge to control the position of the roller-sections AA-,and such set-screws, levers, or cams might be made to act upon forks engaging the grooved heads of the roller-sections, so that the pivoted rings a could be dispensed with.

hat I claim as new, and desire to secure by Letters Patent, is

l. The combination, substantially as hereinbefore shown and described, with the shaft 0, of the roller-sections mounted on said shaft and IO justing the hangers in a direction transversely to the shaft, the roller-sections mounted on the shaft and movable thereon in the direction of its length, and means, substantially such as described, for adjusting the roller-sections on the shaft. v

3. The combination, substantially as hereinbefore shown and described, of the shaft 0, the

hangers which form the bearings for said shaft, means, substantially such as described, for adjusting the hangers, lugs k,projecting from'said hangers, the roller-sections mounted on the shaft and movable thereon in the direction of its length, the grooved heads formed on the ends of the roller-sections, the rings 02, suspended from pivots secured in the lug k, and 25 the set-screws o.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

7 JOHN W. MILLET. [L. s.]

Witnesses: LEoPoLD ZUELLICH, JOSEPH KOCH.

22 o L: o co i. 5-. c: Q")

It is hereby certified that in Letters Patent N 0. 311,844, granted I ebruaEy 3, 1885, uponthe application of John WV. Millet, of Dolgeville, New York, for'an improvement in Guides for Endless Aprons, the name of the assignee was erroneously Written and printed Alfred Dodge instead of Alfred Dolge; that the proper correction has been made in the files and records pertaining to the case in the Patent Office, and should be read in the Letters Patent to make it conform thereto.

Signed, countersigned, and sealed this 24th day of February, A. D. 1885.

[SEAL] M. L. JosLYN,

Acting Secretary of the Interior. Gountersig'ned:

BENJ. BUTTERWORTH,

Commissioner of Patents. 

